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Optics Letters

Optics Letters


  • Vol. 23, Iss. 8 — Apr. 15, 1998
  • pp: 588–590

Absolute measurement of the second-order nonlinearity profile in poled silica

D. Pureur, A. C. Liu, M. J. F. Digonnet, and G. S. Kino  »View Author Affiliations

Optics Letters, Vol. 23, Issue 8, pp. 588-590 (1998)

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Measurement of the thin nonlinearity profile of poled silica by the Maker fringe technique has been impossible because of total internal reflection (TIR) at the back surface of the sample. We demonstrate that this limitation can be removed by placing a prism against each face of the sample, thus avoiding TIR. This novel technique allows, for the first time to our knowledge, the nonlinearity profile of a thin film to be inferred by the Maker fringe technique. Applied to a silica sample thermally poled under standard conditions (275°C and 5.3 kV for 30 min), it suggests a Gaussian profile with a 1/e width of 8 μm and a maximum d33 of 0.34 pm/V.

© 1998 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(160.4330) Materials : Nonlinear optical materials
(160.6030) Materials : Silica
(190.0190) Nonlinear optics : Nonlinear optics
(190.4160) Nonlinear optics : Multiharmonic generation
(190.4400) Nonlinear optics : Nonlinear optics, materials

D. Pureur, A. C. Liu, M. J. F. Digonnet, and G. S. Kino, "Absolute measurement of the second-order nonlinearity profile in poled silica," Opt. Lett. 23, 588-590 (1998)

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